Flexirubin-type Pigment Production from Chryseobacterium artocarpi CECT 8497 and its Application as Natural Ink

Mohamad Ainuddin Wahidin; Claira Arul Aruldass; Mohd Amir Asyraf Mohd Hamzah; Siti Aminah Setu; Wan Azlina Ahmad

Authors

Mohamad Ainuddin Wahidin Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Malaysia
Claira Arul Aruldass Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Malaysia
Mohd Amir Asyraf Mohd Hamzah Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Malaysia
Siti Aminah Setu Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Malaysia
Wan Azlina Ahmad Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Malaysia

Keywords:

Chryseobacterium artocarpi CECT 8497, flexirubin, liquid pineapple waste, application, environmental friendly ink

Abstract

Interest and demand for bacterial pigments is growing due to rising awareness of toxicity of synthetic dyes. This study evaluated on the production of flexirubin-type pigment from Chryseobacterium artocarpi CECT 8497 using liquid pineapple waste in 5-L bioreactor and its application as environmental-friendly ink. Liquid pineapple waste supported bacterial growth and pigment production for C. artocarpi CECT 8497. The ink was successfully formulated with polyvinyl butyral and polyvinyl pyrrolidone giving a smooth texture. The functional groups of formulated ink identified using FTIR were OH, C-C and C-H. Flexirubin ink was stable during the entire storage period of 30 days at temperatures, ranging from 25 to 70°C, pH 1.0 to 11.0 and in the presence and absence of light. This is the first report on ink formulation of flexirubin-type pigment from C. artocarpi CECT 8497 and its potential application on plastic materials.